Capt. Henry True/Trew's ancestors?

I am a descendant of Capt. Henry True/Trew. I have recently been researching my family line and am wondering if anyone has had any luck finding generations of Trews before Henry. I have seen a John Trew (b. 1589) on a few trees out there, but nothing beyond that. BTW, it is awesome to see that my family has a rich history! I currently live in Illinois and many of my close relatives live in Iowa and Minnesota.